Machine for coating platform shoes and covers therefor



April 12, 1949.

Filed Jan. 27, 1947 W. L. MaCKENZlE MACHINE FOR COATING PLATFORM SHOES. Am) COVERS THEREFOR 8 Sheets-Sheet 1 in venan wub LmL/Vac/(enzie W. L. MaCKENZIE MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR April 12, 1949.

8 Sheets-Sheet 2 Filed Jan. 27, 1947 [In ven #01 Wil burnL. /Vac Kenzz'e APnl 12, 1949- w. L. MacKENzlE 2466,818

. MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR Filed Jan. 27, 1947 a sheets-sheet s 254555445 .rAr//z E.

April 12, 1949. w. l.. MacKENzlE 2,466,818

MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR 8 Sheets-Sheei'I 4 Filed Jan. 27, 1947 l Inventm@ WiIbarLJac/(enzz'e y hz' Atzomey April 12, 1949. w. l.. MacKl-:NZI 2,466,818

MACHINE FOR COATING PLATFORM .SHOES AND COVERS THEREFOR Filed Jan'. 27, 1947 8 Sheets-Sheetl 5 April 12, 1949. w.|... MacKENzlE 2,466,818

MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR Filed Jan. 27, 1947 l8 sheets-sheet 6 April 12, 1949. w. 1 MacKENzIE 2,466,818

MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR L fas l In Uenm@ .Wz'IbarLJVac/(enzie 'April 12, 1949.

w. L. MacKr-:NZIE 2,466,818 MACHINE FOR COATING PLATFORM SHOES AND COVERS THEREFOR Filed Jan. 27, 1947 e sheets-sheet 8 scale showing in elevation fragments of the applying roll and the supporting roll;

Fig. 13 is a horizontal section taken on the axis of the applying roll and showing a piece of work in position; and

Fig. 14 is a fragmentary vertical section like Fig. 11 but with the shank portion of the sole in engagement with the nozzle.

As a shoe S having a platform sole IIJl (Fig. 11) and a platform cover I2 is presented to the machine, the cover is gripped between a hollow applying roll I4 and a supporting roll-I6 and is positioned with the platform sole I in engagement with the tips of nozzle njgers I8. The sole will also be positioned to engage an abutment or guide surface (Fig. 13) in a nozzle carrier 22.

These Work-engaging parts are supported by a frame (Figs. l, 2 and 4) carried at the upper end of an adjustable column 32, which is mounted on a box-like base 34 (Fig. 3). The principal or lower portion of the column 32 is a box-like column 356 having three closed sides and inturned vertical flanges 352 (Fig. 3b) on Athe fourth side. The lower end of this box-like column 356 is provided with an end plate 354 (Fig. 3) having flanges 356 Welded to the three sides of the column. The lower end plate 354 is then bolted to the box-like cast-iron base 34. At its upper end the box-like column has an inturned flange 358 to which there is bolted a bearing sleeve 360. This bearing sleeve slidably receives a post 362 having a vertical slot to receive the shanks of clamping bolts 364 by means of which the post may be adjustably secured with respect to the sleeve. The upper end of the post carries a. horizontal plate 366 to which there is secured a depending sheet metal housing 368 4telescoping over the rectangular box-like column in any position of adjustment of the height of the column. This housing is held on the plate 366 by bolts 310 which also are threaded in a bottom flange 84 of the frame30. It will be seen that, by access through the open side of the box-like column, adjustment of the height of the column may be provided by loosening the clamping bolts 364 and turning a hand screw 312 rotatable in, but held against axial movement with respect to a block 314 attached to the lower end of the post 362, this screw being threaded in a boss 316 on the side of the bearing sleeve 366. On the housing 368 which forms the upper part of the column are welded two flanged or zig-zag strips 380 to which there is clamped a bracket 382 having an upright pintle which carries and serves as a hinge for a solvent container 229. l

From Fig. 4 it will be seen that the frame 36 comprises a rectangular midportion, a substantially triangular extension 36 seen also at the left of Fig. 1 and a supporting bracket 38 seen also at the right of Fig. 2. On this bracket 38 there is carried a driving motor 40`having a pulley 42 belt connected to another pulley 44 which is on the rear end of a jack shaft 46 which has a worm 48 engaging a worm gear 56. This latter is mounted on the end of a drive shaft 52 which is supported in journals provided in the rectangular frame and on the left-hand end of which is mounted the applying roll I4. The work-supporting roll I6 is carried on a jack shaft 54 which is journaled in a tilting bracket 56 forked inside the hollow frame and pivoted betweenconical screws 58 which are threaded in lugs 60, 62 forming part of the frame.K The bracket has an extension 64 the end of which is forked at 66 :to surround a treadle-rod extension 68 and to underlie a washer 69 (Fig. 2) held resiliently against the forked end 66 by a spring 'I0 between this washer and the head of the treadle-rod extension. The lower end of the extension 68 is connected to a tilting lever 'I2 by means of a transverse pin 14. This lever 'I2 is pivoted in brackets 'I3 extending up from a bottom flange 84 of the frame 36. To the pin 'I4 there is also secured the forked upper end 'I6 of a treadle rod 13, the lower end of which is pivotally connected to a treadle swung on a horizontal pivot on the base 34 (Fig. 3). This treadle rod passes through a generally circular opening 82 (Fig. 4) in a flange 84 at the bottom of the hollow frame 30 and this flange is utilized for attaching the frame to the top of the column.

At the top of the frame there is another flange 86 by which, and a cover portion on the triangular extension 36, there is mounted on the top of the frame a double receptacle 8B held in position by screws such as that shown at 90 in Fig. 1. This receptacle is provided with a container 32 for cement to be delivered to the nozzle I8 and another receptacle 94 for cement to be delivered to the applying roll I4. Inside the frame there is a gear pump 96 which receives cement from the'receptacle 92 and delivers it through an outlet 98 which is connected, as will later appear, to the nozzle IB by means of a flexible hose |00. A by-pass controlled by a needle valve |02 having a head |03 is used to regulate the pressureof the cement delivered to the nozzle as indicated by a dial gage |64. The pump is driven by meshing gears |06 connecting the pump shaft to the drive shaft 52.

It is desired to have the work move in a direction indicated by the arrow in Fig. 13 in order that a cross-feed action may be set up 'by the applying roll and the supporting roll which will constantly tend to tension the platform cover I2 away from the sole I0. This direction is determined by the guide surface 20 and the tensioning of the cover results from the fact that the work is always moving at an acute angle to the axis of the applying roll I4 so that the surface of the latter tends to carry the cover both forward and in a direction at right angles to its axis while the connection of the 4cover to the shoe tends to pull it along the direction of the arrow in Fig. 13 thereby causing the cover to be drawn taut so that the band of cement IIIl which is applied to the cover by the applying roll I4 is spaced by a clean margin II2 from the corner H4 of the platform sole. Similarly the distance of the nozzle iingers I8 above the surface of the supporting roll I6, as indicated in Figs. 11and`14, is such that a clean margin IIB is left below the band of cement II8 which is applied to the platform sole Ill. v

In order to avoid interference between the portion of the cover which overlies the corner I I4 of the platform sole I6 and the near corner of the supporting roll I6, the shaft 54 of the latter has been mounted (Fig. 4) at an angle to the shaft 52 which supports the applying roll and the end of the supporting roll I6 has been reduced and provided with a frusto-conical extension |20 against which the work may rest* (Figll) without scufling the latter since it is always posi- 'tioned in a plane which is substantially normal to the axisof the supporting roll. This may be seen from Fig'. 14 where the corner of the roll I6is cut back vto form the extension I2Il. 'I'he bracket 56 which carries the shaft `54 is also provided with a bearing I'22 for a short shaft I24 connected to ggecgsrs the shaft 54?? by means of miter gears h2o.. A. drive chain |28Jbetweenthe drive shaft 52 the.

short shaft I 24-is in the plane of the pivot. screws downward of this bracket 56 is limited. by a stopL screw |30 carried in. a bracket. F332: attached tot the bottom ange 84 of the. hollow frame while the approach of the rol-ls. is limited by a. screw |.3| (Figs. 1. and) carried; im the: bracket 501 Inasmuch as the. supportingv ro'll- |5 contacts with ther outer surface of the platform cover: it is necessaryfthat it shall be, kept. clean so as not to.- smear: cement upon: the cover. Accordingly. pro'- vision.. has' been. made for clearing the cementl from. the peripheralf end faces of the sup porting roll by means of Scrapers M10 and M2 Figsf.. 8-v and 10)'. The scraper' |40 is shaped: to. fit the.l periphery or the supporting roll t5: and'. is' formed on the end of. a plate |44 Whichisiorked tosurrourrd the shaft of a; clamping bolt. M6, the head |41: of which is notched to engage ai posi'- tioning pin |548. This bolt passes through andthe pin is supported a. rectangular block. |55; n:-

tegral with a stud |252 which isA tiltably mounted'.

1n a sleeve` |54' formi-ng. part of a bracket. L56 by means: of which. the: scraper. is attached. toil the workesupporting-roll bracket 56: and. is'held in: position thereon by screws such. as that shown at;y if int Fig.. 1'.. The end: scraper r4.2 is'. formed fromv a: block: |601 which. is held: the, cnd of; the blockl |50- by means ot' a shouldered retaining screw |I'6s2. It iszto: berunderstoo'd thatthe: scraper: M2: has surfaces c'oacting with` the endll andi w they periphery of.' the frusta-conical portion- |'i2'0 aswellas withthe adjacent'` shoulder oni-the' bod'y of theroll |'6'.. These. Scrapers |140 and! M2. are held ma contact' with the supporting: roll byi means-.1 of arspring F64 which is interposed between a lug- |6'6i on the supporting bracket Hit, #55 and a lug |208 havingA a collar portion l'ih which is held on'r the stud |5-21by1 means of a setscrew Hill.

It hasI been: found that, with certain kinds' of cement, any thin layer which is not completely removed'- and? which dries before it reaches the Scrapers |40 and |42 becomes so hardened that the roll itself is scored by the action of the) Scrapers in tryingtoremove this layer. Accord` infglly, it' is four-1d'- desrabl'e to als@ provide av felt Wiper' |72 engaging the surfaces of' the supporting rolll I at a point ahead. of" the scrapcrs and to continually supply this feltwith a solvent de' livered through a tube |13*1 from a sight-feed' cup |15 (Fig. 1) so that any residual cement' orr ther'ollwill be continually prevented*- from drying untilI it reaches thescrapers. The-felt |'li2 is supported in a channel formed in ay carrier |14whi'ch has a depending arm |16 toA swingably mount the" carrier upon the stud |52: (Fig. 8'). The. arm is provided with a lug |"|B between which and' an.- otherl'u'g Ill'on the bracket |54 is a spring., L82. acting to pressthe felt against the roll. Agroove. formed at the bottom of the. channel in the carri'er |74 communicates with a cup |85- (Fig. 10). formed in an. enlargement |85 of-` the carrier |14 and. positionedf tov receive solvent dripping. from-` the end of the tube |73. A plate |88.` attachedftof` the carrier |74 providesadditional. support for the felt so that it will not be pushed out of the` carrier'by theV action of the-driven lsupporting roll i6. At the outer end of the carrier |'|ly a cover: plate |90-isattachedthereto by. a: screwy |92: and

Sill;

- therein.

has an; aperturedl end portionswinggably mounted on. the headz of thescrewf ||i2 v I 'Ehen carrierv 22 for the; nozzle |:8 is' supported; Orr the" end. off at plate 2.00y (Fig. 5.)? whichfha-sa re*-Y duced portion or slide: 20| received in a'` dovetail` slot 202 linc the: upper' end.' of a block 204 which ist provided with side flanges 206- to' enable it.` to be attached by means. of screws to theendk face of the double. receptacle 88.. The! non zl'ef carrier and.` its plate are'. held in the dovetailf 213-2y by means of a. jam 208- (Fig. 11) inY the lower end ofay lever which* ispi-voted onv a pin: 2 l0 (Eig. 5?) carried-v by an. upstand-in-g. lug. 2|.2 formed-` on the upper. surface of the slide portion 20st.. 'The jam 208 bears frictionally upon the upperV surface of the block 204'to lock the nozzle carrier inposition.. On-thetop of the plate: 20|)y ther-eis attached-by screws 2M (Fig...6) a tting; 2Ii` corre taining aI shutoff valve 2Ii8 whichis. interposed. in.v a.` passage comprising a, pipe` tting 220.- joined; to. the flexiblev hose |09. The actuationof thisA shutfo valve 2|8 isV eectedby means of. a sha-tt 222 passing. through a. sleeve 224 in the. recep tacle and'. navi-nga forked end' `226 (Fig. 5).

. adapted. to engage a: cross-pini 228 in the. valve 210'.. At its right end the shaft. 222. provided?. with a lever 236 (Fig. 2.) which is connectedv by a rodi 238 to the lever '|25 theother end'` oi wl'iichA is joined to. the. forked.. upper end. of, the treadl'e': rod T8' by the pin T4. The arrangement is suclr. that. after thebracket has been tilted. to raise the. supporting roll |61 into. engagement to. grip. the work: against. the under side of;` the applying'v roll: l', thenthe valve 2 |`8 is opened to. permitthe flow of cement' under pressure to the. nozzle LB.. Beside. the forked end of the shaft 222'. there. is a short handle. 230i (Fig. 5') and a spring: 232i isv provided between thishandle and'. the side ofi` the' receptacles 08 to normally hold' the forked end. 226 in engagement. with the pin 228. Between. periods of use of, the machine the` nozzle carrier' isremove'd in order to dip thev nozzle in a solvent cup 229I (Fig. 3') and at'that time the shaft 222 is held -in retracted position by pushing the' hand lever 2310 inwardly toward the wall of the receptacle and5 turning. a hat hook 234 down over. the forkedv end 22B atthe left of. the handle 2301 The nozzle |8- is made up of a series of hat. delivery plates or fingers 25W (Figs 6 and 7)', each offwhich is provided; with a passage 252A communieating with a supply of cement, as`v will be later described, through a tube 2'54 connected thereto. Theseries of delivery plates 25'0is mounted in and'. ll's an aperture in the carrier 22- and each orj the plates has" shoulders 256 to limit the outward movement thereof. In orderk 4to provide space.' for the nozzle parts, the' carrierv 22 has' a` pro'- jection 258'I which is received within' thev hollow roll M This' projection hasa recess260 iniwhi'ch' the tubes 254 are positioned and this recess' is defined by' a closurel plate- 2'62 between which and" the delivery pl'ateslaresprings2'64fsurrounding the individual. tubes 254'. The closure plate per-- fforat'edltopermit a sliding movement offthetubes The ends of? thesetubesopeninto an innerire'cess 266 formed partly in the closure)plate` 262i and partly in a coverA 268 held on thel proejection 258L by meansof screws 210. A dowel pinl4 212'. facilitates the assembly ofthe closure plate`r 2.52.? and. the ycover 260? on the projection 2531.

Cement*y under pressure is thensupplie'dr to tlreinner recess 236-1 through a passage 211i in the closure plateand aseri'es of? passagesZ?, Zanfd 285mm the carrier 2:21. The upper'end of tnepasesagea 280 communicat'eslwitli. thevalfve tting: 2-'| 6i Itwill. be noted that the work-engaging end of each of the plates 250 is provided with shallow grooves 282 between which the passage 252 opens. There is thus provided a series of separately movable delivery plates 250 each individually supplied with cement through its corresponding tube 254 with the result that the end of the nozzle can as readily accommodate itself to a curved surface 284 (Fig. 14), such as might be found on the bottom of the shank portion of the platform sole I0, as it can to a flat portion of said sole as shown in Fig.. l1. The carrier 22 has an overlapping guard 286 which prevents the approaching Work from contacting the outer lower corner of the applying roll I4.

Due to the impossibility of making the tubes 254 t so tightly in the perforated closure plate 262 that there will never be any leakage of cement into the recess 260, it is found desirable to supply small amounts of solvent to that recess so as to assure free movement of the individual delivery plates 250 and of the springs 264' surrounding these tubes 254. Accordingly, another sightfeed cup 290 (Fig. 1) is provided with an open end tube 292 so that solvent may be delivered drop by drop to a cup 294, formed in the upper surface of the slide 20| and communicating through passages 296, 298 and 300 with a groove 302 which opens into the upper side of the recess 260.

The delivery of cement from the left-hand receptacle 94 to the upper side of the applying roll I4 is eiected by means of an outlet opening 3I0 in the receptacle wall which communicates with a tapered passage 3I2 in the block 204 and in which there is inserted a shut-off valve 3 I4. The lower end of this passage at 3I6 is enlarged from front to :back to permit the cement to spread over the upper surface of the applying roll I4 while the quantity thereof is controlled by a scraper plate 320 (Fig. 5) mounted on the front side of the block 204. The lower end of this scraper plate is close to the periphery of the applying roll and the plate is received in a recess 322 (Fig. 5) in the front face of the block 204 in which it may be moved up and down by means of an eccentric pin 324 on the end of a cross-shaft 326 having on the rear side of the block a short handle 328. The eccentric pin 324 is received in a horizontal slot 330 in the scraper lplate 32D and the latter is also provided with a vertical slot 332 receiving a headed screw 334 which is threaded into the end of the shut-oli` valve 3I 4. On the far end of the shut-oi valve is a handle 336 to permit it to be closed when leaving the machine for the night, for example.

In the use of the machine a shoe S having a platform sole I0 is held with that sole nearly upright and engaging the ends of the plates of the nozzle I8. The platform cover I2 is positioned between the applying roll I4 and the supporting roll I6 and the shoe is turned horizontally to bring the sole into engagement with the guide surface 20. The operator then depresses the treadle 80 to lift the supporting roll I6 and to open the shut-off valve 2I8 in the fitting leading to the nozzle. Then, assuming that the motor is in operation and turning the rolls I4 and I6, the cover will be fed positively forward and at the same time will be drawn inwardly to tension it so that the band of coating material IIO will be slightly spaced from the lcorner I I4 of the sole as shown in Fig. 13. Similarly the nozzle will apply a coating upon the platform sole I0, leaving a clean margin IIE, until the whole periphery of the sole, or such portion thereof as it is desired kto coat, has been traversed. The treadle will then be released shutting the valve 2I8 in the nozzle supply and lowering the supporting roll I6, permitting the work to be removed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting cover adapted to be lasted over the bottom of the shoe, rolls for gripping the cover material, means for supplying cement to one of said rolls to coat the inner surface of said material, rigid means for guiding the shoe at an acute angle to a plane normal to the axis of the roll thereby to set up a cross-feed which will stretch the cover material as it is coated.

2. In a machine for simultaneously coating the margin of the bottom of a shoe an-d a projecting cover adapted to be lasted over the bottom of the shoe, rolls for gripping the cover material, means for supplying cement to one of said rolls to coat the inner surface of said material, a nozzle for applying coating material simultaneously to the margin of the bottom of the shoe and a rigid abutment beside the nozzle for guiding the shoe at an acute angle to a plane normal to the axis of the roll thereby to set up a cross-feed which will stretch the cover material as it is coated, and a nozzle for applying coating material simultaneously to the margin of the bottom of the shoe.

3. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting flexible cover adapted to be lasted over the bottom of the shoe, an applying roll supported at one end of a driven shaft, a coacting roll for supporting the eXible cover material in contact with the applying roll, a shoe-bottom-guiding rest adjacent to the unsupported end of the applying roll, and means on said rest for coating the margin of the bottom of the shoe progressively as the flexible material is coated by said applying roll.

4, In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting iiexible -cover adapted to be lasted over the bottom of the shoe, a cement-applying roll supported at one end of a driven shaft, a coacting work-supporting roll to press the exible cover material against the applying roll, a shoe-bottom-guiding rest adjacent to the unsupported end of the applying roll, an extruding nozzle in said rest disposed in position to coat the margin of the shoe bottom, and means for supplying cement to said nozzle.

5. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting iiexible cover adapted to be lasted over the bottom of the shoe, a cement-applying roll supported at one end of a, driven shaft, a coacting worksupporting roll to hold the exible cover material against the applying roll, a shoe-bottomguiding rest on the machine adjacent to the unsupported end of the applying roll, a conformable nozzle in said rest for coating the margin of the bottom of the shoe, said nozzle being arranged to conform to the position and curvature of the latter, and means for supplying cement to said nozzle.

6. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting cover adapted to be lasted over the bottom of the shoe, a cement-applying roll supported at one end of a driven shaft, a coacting work-supporting roll, a shoe-bottom-guiding rest having a guiding surface at an acute angle to the end` of the applying roll, a coating nozzle in said rest adjacent to said guiding surface and conformable to a shoe bottom, and means for supp-lying cement to said nozzle.

7. In a shoe part cementing machine, coacting rolls for gripping theI margin of iiexible material projecting from the bottom of a shoe and intended to be lasted over that bottom, said rolls being unsupported at their outer ends, means for driving at least one of said rolls, the outer end of one of said rolls being provided with a recess, an abutment at the end of that roll serving as a shoe-bottom rest and provided with a portion projecting into the recess of the roll, said abutment having a multi-finger nozzle built into the projecting porti-on of the abutment and arranged to coat part of the surface of the shoe bottom which engages the rest, and means for supplying cement through the projecting portion to the individual fingers of the nozzle.

8. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting cover adapted to be lasted over the bottom of the shoe, means for stretching and coating the cover, means for coating the margin of the shoe bottom comprising an apertured guide one face of which is engaged by the shoe bottom, a series of nozzle fingers positioned in said aperture and projecting from the guiding face, said fingers having passages therein, and means for supplying cement to the passages of said fingers.

9. In -a machine for simultaneously coating the margin of the bottom of a shoe and a projecting cover adapted to be lasted over the bottom of the shoe, means for stretching the cover, means for ycoating the shoe bottom comprising a bottom guide having a recess, a series of nozzle ngers positioned in said recess and projecting out toward the shoe bottom, said fingers having passages and open end tubular extensions communieating with the passages, a closure for the recess provided with apertures for the open end tubular extensions, springs in the recess arranged to press the fingers against the work, means for supplying cement to the extensions, and means for supplying solvent to the recess.

10. In a shoe-part-coating machine, a flexible nozzle comprising a block having a recess, an opening in said block communicating with the recess, fingers movable in the opening having passages therethrough for the extrusion of coating material, springs within the recess to 0ppose inward movement of the fingers, means for supplying cement to the finger passages, and means for supplying a solvent for the coating material to the recess to facilitate the free movement of the fingers.

11. In a shoe-part-coating machine, a flexible nozzle comprising a recessed block provided with an opening communicating with the recess, hollow delivery fingers movably positioned in said opening to substantially fill it, a cover for the recess, tubes in the recess communicating with the fingers and passing through the cover, springs surrounding said tubes and interpositioned between the fingers and the cover, a chamber receiving the ends of the tubes, means for supplying cement to said chamber, and means for supplying a solvent for the cement to said recess.

12. In a shoe-part-coating machine, a recessed block having an opening, ngers laterally con- 10 tacting one another, extending through and iilling said opening, said fingers having passages, means for urging said fingers outwardly of the recess, means for limiting the outward movement thereof, and means for supplying coating material to the finger passages.

13. In a machine for simultaneously coating the margin of the bottom of a shoe and a projecting cover adapted to be lasted over the bottom of the shoe, an applying roll and a coacting worksupporting roll, a shoe-bottom-engaging means adjacent to the end of the applying roll for guiding the bottom of the shoe in a plane forming an acute angle with the axis of the applying roll, the axis of said supporting roll being `also angularly related to the axis of the applying roll and substantially normal to the plane of the shoebottom-engaging means.

14. A machine as in claim 13 in which the supporting roll has a reduced portion at its outer end for supporting the work adjacent to the edge of the Shoe bottom.

15. In a coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, an applying roll for coating the platform cover, a shoebottom-engaging guide adjacent to the end of the applying roll for guiding the bottom of the shoe in a direction other than normal to the axis of the applying roll, and a supporting roll for holding the cover in engagement with the applying roll, the axis of said supporting roll being angularly related to the axis of the applying roll, the corner of said supporting roll being cut back to avoid scarring the work near the edge of the platform sole.

16. In a coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, an applying roll and a coacting work-supporting roll having their axes in parallel horizontal planes, the axis of said supporting roll diverging from a vertical plane through the axis of the applying roll, the periphery of said supporting roll being hollowed to fit the coacting portion of the applying roll, means to supply coating material to the applying roll, and a shoe-bottom-engaging rest adjacent to the end of the applying roll for guiding the bottom of the shoe in a plane forming an acute angle with the axis of the applying roll.

17. In .a coating machine for a platform shoe having a iiexible platform cover surrounding the periphery of a platform sole on the shoe, an applying roll and a coacting work-supporting roll having their axes in parallel horizontal planes, the axis of said supporting roll diverging from a vertical plane through the axis of the applying roll, the periphery of said supporting roll being hollowed to fit the coacting portion of the applying roll, means to supply coating material to the applying roll, and a shoe-bottom-engaging rest adjacent to the end of the applying roll for guiding the bottom of the shoe in a plane substantially normal to the axis of the supporting roll.

WILBUR L. MAcKENZIE.

REFERENCES CITED UNITED STATES PATENTS Name Date Phillips July 4, 1944 Number Certificate of Correction Patent No. 2,466,818 April 12, 1949 WILBUR L. MACKENZIE It is hereby certiedthat errors appear in the above numbered patent requiring oorretion as follows:

In the grant, line 6, in the heading to the drawings, line 3, Sheets 1 to 8, inclusive, and in the heading t0 the printed specification, line 2, in the title of invention, for SHOES read SOLES; column 7, line 23, for tubes 264 read tubes 254,' column 8, line 19, after coated and before the period, insert ana7 means for applying coating niaterial simultaneously to the margin of the bottom of the shoe lines 31 to 33, Strike out and a nozzle for applying coating material simultaneously to the margin of the bottom of the shoe;

same may conform to the record of the case in the Patent Ollioe'. Signed and sealed this 10th day of January, A. D. 1950.

THOMAS F. MURPHY,

Assistant Uommz'ssz'oner of Patents. 

